You have calibrated your equipment to spray 50 gallons per acre. If the label calls for 3 pounds of formulation per 100 gallons of water, how many pounds of formulation should you add for 50 gallons?

To find out how many pounds of formulation to add for 50 gallons of water based on the label's requirement, you first need to understand the ratio provided by the label. The label indicates that 3 pounds of formulation are required for 100 gallons of water.

Since you are calibrating your equipment to spray at 50 gallons, you can set up a proportion to determine the amount needed for that volume. The calculation involves determining half the amount since 50 gallons is half of 100 gallons.

Here's the calculation:

1. The label calls for 3 pounds of formulation per 100 gallons.

2. For 50 gallons, you need half of that amount because 50 gallons is half of 100 gallons.

3. Therefore, you would take 3 pounds and divide it by 2, resulting in 1.5 pounds.

This means you should add 1.5 pounds of formulation for the 50 gallons you are planning to spray. This approach ensures that the pesticide concentration remains at the level recommended by the manufacturer, promoting effective pest control while minimizing environmental impact and risks associated with over-application.